1254748669 has 2 divisors, whose sum is σ = 1254748670. Its totient is φ = 1254748668.

The previous prime is 1254748637. The next prime is 1254748673. The reversal of 1254748669 is 9668474521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672105625 + 582643044 = 25925^2 + 24138^2 .

It is an emirp because it is prime and its reverse (9668474521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1254748669 - 2⁵ = 1254748637 is a prime.

It is a super-2 number, since 2×1254748669² = 3148788444714543122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254748609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627374334 + 627374335.

It is an arithmetic number, because the mean of its divisors is an integer number (627374335).

Almost surely, 2^1254748669 is an apocalyptic number.

It is an amenable number.

1254748669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254748669 is an equidigital number, since it uses as much as digits as its factorization.

1254748669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The square root of 1254748669 is about 35422.4317205920. The cubic root of 1254748669 is about 1078.5797142488.

It can be divided in two parts, 12547 and 48669, that added together give a palindrome (61216).

The spelling of 1254748669 in words is "one billion, two hundred fifty-four million, seven hundred forty-eight thousand, six hundred sixty-nine".